Heppner, P. Paul. Wampold, Bruce E. Kivlighan, Dennis M. <br/><br/>
Research design in counseling 

 - 3rd ed. 
 - Australia  Thomson/Brooks  2008 
 - xx, 666 
<br/><br/><label>ISBN: </label>9780495603641 
<br/><br/><label>Dewey Class. No.: </label>158.3 HEP;1 R